The 275/45R20 Nitto NT90W has a diameter of 29.76", a width of 10.75", mounts on a 20" rim and has 699 revolutions per mile. It weighs 34.9 lbs, has a max load of 2337 lbs, a maximum air pressure of 50 psi, a tread depth of 11.6/32" and should be used on a rim width of 8.5-10.5".